Sock



FIG. 1 is a front perspective view of a sock of the present invention showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a rear perspective view thereof.

The evenly dashed broken lines showing a human foot and a left foot sock are for the purpose of illustrating environment and form no part of the claim. The evenly dashed broken lines on the sock are for the purpose of illustrating stitching and a circular pattern on the bottom of the sock and form no part of the claim. 

CLAIM The ornamental design for a sock, as shown and described. 